The present invention relates to a blood pressure measuring cuff which is wrapped around a portion where blood pressure is to be measured the cuff being wrapped in one direction along the circumferential direction of the portion. The blood pressure measuring cuff is provided with a band like body (11) which is formed by enveloping a fluid bag (12) with: an inner fabric (5) which is adapted to be in contact with the portion where blood pressure is to be measured and an outer fabric (4) which faces the inner fabric. The blood pressure measuring cuff is also provided with: a ring (6) which is mounted to the inner peripheral end (11e) side region of the outer fabric (4) through a ring mounting member (7) and a surface fastener (3) which is provided to the outer peripheral end (11f) side region of the inner fabric (5). The ring (6) has a temporary retention structure (60). During the mounting of the cuff the temporary retention structure (60) permits a region continuous with the outer peripheral end (11f) of the band like body (11) to be pulled out by arm force through the ring (6) in the direction in which the region moves away from the portion where blood pressure is to be measured and prevents the region continuing to the outer peripheral end (11f) of the band like body (11) the region having been pulled out by the arm force from being pulled back through the ring (6) by the elastic force of the portion where blood pressure is to be measured.
